Finding the Third Proportional to 29,615.16 and 69,911.30

Step by Step Solution

1. Step 1: Write the proportion equation
   29,615.16 : 69,911.30 = 69,911.30 : x
2. Step 2: Convert to fraction form
   29,615.16/69,911.30 = 69,911.30/x
3. Step 3: Cross multiply
   29,615.16x = 69,911.30 × 69,911.30
4. Step 4: Simplify right side
   29,615.16x = 4,887,589,430.74
5. Step 5: Solve for x
   x = 4,887,589,430.74/29,615.16
6. Step 6: Final answer
   x = 165,036.76